9855660142 has 8 divisors (see below), whose sum is σ = 14783958432. Its totient is φ = 4927674000.

The previous prime is 9855660131. The next prime is 9855660161. The reversal of 9855660142 is 2410665589.

9855660142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 9855660092 and 9855660101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31842 + ... + 143962.

It is an arithmetic number, because the mean of its divisors is an integer number (1847994804).

Almost surely, 2^9855660142 is an apocalyptic number.

9855660142 is a deficient number, since it is larger than the sum of its proper divisors (4928298290).

9855660142 is a wasteful number, since it uses less digits than its factorization.

9855660142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156074.

The product of its (nonzero) digits is 518400, while the sum is 46.

The square root of 9855660142 is about 99275.6774945404. The cubic root of 9855660142 is about 2144.0187202213.

The spelling of 9855660142 in words is "nine billion, eight hundred fifty-five million, six hundred sixty thousand, one hundred forty-two".